PV Measurements, Inc. in Boulder, Colorado, US (United States)

This spectroradiometer measures the spectral irradiance of sunlight and solar simulators. It includes an optical pickup head with a diode-array spectrometer to measure light, a calibration lamp to ensure accurate measurements, and a notebook computer for portability. 

This uniformity tester uses an array of solar cells to assess the uniformity of light on its surface. The 8 x 8 array of solar cells covers a 21 x 21 cm plane, enabling the system to test solar simulators with a 21 x 21 cm illumination area. 

All systems include a light source, monochromator, filters, and reflective optics provide monochromatic light to a photovoltaic device while a broadband bias light illuminates the test device to simulate end-use conditions. 

PV Measurements can supply the I-V testing equipment you need for testing solar cells and modules—whether you're starting from scratch or you want to incorporate existing equipment. 

Current and voltage data—digitized by a 12- or 16-bit analog-to-digital converter—are provided to the computer for analysis and display. Easy-to-use software interprets the data and generates test reports and data files. These photos illustrate the three configurations available.